Wrapper or sheet feeding mechanism.



w H. Y. ARMSTRONG.

WRAPPER 0R SHEET FEEDING MECHANISM.

APPLIOATION FILED NOV. 10, 1909 RENEWED DEC. 31, 1910.

' Patented July 25, 1911.

2 SHEETS-SHEET I.

H. Y. ARMSTRONG.

WRAPPER OR SHEET FEEDING MECHANISM. APPLIUATION YILEDNOV. 10, 1909. vBJSI'TEWYD D110. 31, 1910. 'gggggf Patented 511137251911.

HARRY YARRINGTON ARMSTRONG, OF ELGIN. ILLINOIS.

WRAPPER B SHEET FEEDING MECHANISM.

assess.

Application filed November 10, 1909, Serial No.

Feeding Mechanism. (Case No. 3:) and. l]

do hereby declare that the 't'ollowing is a full, clear, and exact description thereof. reference being had to the acrompairving drawings. and to the letters of reference marked thereon. which term a part of this specification.

This inventi n1 re ates to improvements in sheet delivery devices ot' that class designed to strip and deliver individual sheets. one at a time. from a compact bundle of sheets, and the invention relates inure specifically to improved -means arranged to prevent more than one sheet being; stripped from the bundle at a time and thereby maintain a bundle of sheets in conditioufor single and consecutive delivery of the sheets.

llly invention may be employed to separately deliver wrappers from a magazine to the wrapping meehanisl'n ot a wrapping ma chine. and the construction herein shown has.

been designed tor such use. Said invention is. however. capable of other adaptations where it is desired to conseei|tivelydeliver sheets trom a compact bundle.

The invention consists in the matters hereinafter set forth and more particularly pointed out in the appended claims.

In the drawings. Figure 1 isa side view of a portion of a sheet delivery mechanism embodying my invention. Fig. 2 is arentral vertical section on line 2;- o't Fig. 3. Fig. 3 is a plan view thereof. Fig. 4 is. a tront elevation of the magazine. with the stripper roller removed.

lhe sheet delivering; mechanism illus trated herein is designed for use in connection with gum wrapping machines of the general type sliown in my prior Unitett States Letters Patent. Number 990,953.

' granted June 16, 1908. and applied for dea hopper, from the bottom of which the pieces of gum are fed by gravity into the or wrapper delivery mechanism 7 Specification of Letters Patent.

Patented July 25. 191 1.

527.152. Renewed December 31, 1910. Serial No. 600,281.-

path of a plunger 11 thatreciprocates through the bottom of the hopper and through a way 12 formed in the machine frame. and through which way the gums are" delivered to the wrapping; mechanism. the slot. 12-; in line with said ay constituting a part of the wrapping mechanism.

14- designates the upper part of a wrapper receiving reeess into which thewrappers are separately delivered by my improved sheet delivery mechanisn'i. so as to extend. across the path of the gums as they are advanced by the plunger. and thus ettect the initial folding of the wrapper about the gum, as set forth in my at'oresaid prior patent. L0- cated above and just in rear of this wrapper receiving recess is a magazine, designated as a whole by to. in which are con taineo a compact bundle of wrappers a. tha. are arranged vertically on their edges. The wrappers at "the forward end of the litzigfmti'lt are in line with the wrapper receiving: recess 1t. and said wrappers are stripped one at a time tromthe inner end of the bundle by means of a stripper roller, de:- .i 9 'natrd as a whole by IT and titted to a horit ontal rotative shaft 17.. The said strip-per roller may be constructed in any suitable manner. and. as herein shown is like the roller illustrated in my co-p'ending application for United States Letters Patent,

Serial Nun-aber 521,834 tiled on the9th day o1 October. 1909.

llet'erringnow to the improved means, constituting the present invention for preventing the stripping of more than one wrapper from the end of the bundle one at.

a time. the same are made as follows: 18

designates a sharp pointed needle which is the friction of the wrapper being withdrawn upon the next wrapper to be withdrawn. Therefore biit one wrapper is stripped at a time.- Tn accordance with my invention this needle is given a swinging or oscillatory motion about an axis located at its point so as to prevent particles of paper. which may be torn .from the wrappers. adhering to the end 01' the needle and thus clog the needle 111 a mannerto prevent it properly penetrating ri phcry the magazine, and the needle is locked in place by the set screw 20. The said rocking bar 19 is provided at its outer end with a bearing shaft 22, located out of alinement with the part of the bar that carries the needle, the said bar being oflset at 23 for this purpose. The said bearing shaft has rocking engagement with bearing members v 24 formed on an arm 20 extending late ally be observed that the polnt of the needle en' from and made integral with a casting 26 that is bolted or otherwise secured to the side wall of the magazine 16.

The rocking bar 19 is provided at its olfset portion with a rearwardly directed crank a1'm27 with which is connected the mechanism for actuating or rocking said bar. The. mechanism for so actuating and rocking the bar is made as follows: 28 designates an arm extending forwardly from the casting 26, to the rear end of which is fixed a short horizontal shaft 20. Mounted on said shaft 29 is a vertically swinging lever comprising a hub 30, an upper arm 31 and a lower arm 32. The upper arm of said lever is connected by a link 33 with the crank arm 27 of the rocking needle bar, and the lower arm 32 of said lever adapted to be actuated by a cam that. fixed to the stripper roller shaft 17 at one end of said roller; said lower arm 29- being provided with a laterally extending anti-friction bearing roller 36 which rides on the peof the cam. {The bearing roller is held engaged with the't-am face .or track by means of a spring 38 that is coil'cd about the hub of said ro lting lever. One terminal 39 of said i-Lpring extends along the upper arm .of the lever and is provided with a hool ,4-O which hooks over said arm, and the other terminal 4-2 of the spring is wrapped about a screw t?) which is carried by a collar, 4-4- .lixed to said shaft 28 laterally outside of said spring 38.

With the construct on described it will b obvious that during each rotation of the t'ripper roller. and its shaft. the rocking bar 19 will be lOf'l-ftfl downwardly from the full line position shown in Figs-fl and 2 to the dotted line position shown in said figures. and'again urnvardly to the full line position about an-axis in alinci'n nt with. the-axis of the otl'set' b aring shaft 22 at thew-.nd'ol said rocking bar. During each cycle of movement of the. needle. one sheet will be willulranui or st ripped from the. bundle. the upper margin of the paper being torn to release-it ;l'| om the retarding needle. The swingiiig or oscillator) I'n'ovemcnt of the needle has the ell'cct to dislodge any fragments of the sheets or wrapplfts which tend to adhere to the needle point. Inasmuch as the needle makes two reversals of move- '1nent during each rotation of the stripper .roller, it will beapparent that the eflicieney of the needle movementto dislodge the fragments of paper from theneedle point will bevery much increased, as compared toa needle havinga eonstant movement ,in one direction, as, for instance, a rotating movement. In the latter case the rotation of the needle constantly in one direction has 'a' tendency to wrap the fragments about the needle point and therebypartially or wholly defeat the purpose of the device. It will gages the paper substantially in line with the axis of the bearing shaft of the rocking bar so that the needle has a true swinging movement about its penetrating point and about a fixed point in space.

Inordcr to prevent the sheets or wrappers clinging to the stripper roller as they are stripped from the bundle; I provide a plurality of vertical guide wires l5 which are arranged between the roller and the bundle of sheets and extend at their lower ends below'the center of the roller. The said guide wires are attached at their upper ends to a horizontal bar it which extends inwardly across the front end of the magazine from the side wall thereof. The said wires are designed to occupy the depressed cenv tral portion of the stripperroller between the enlarged ends thereof, which latter have constant bearing against the sheets, as in the construction shown in my aforesaid pending application. It will be understood that the sheets inthe magazine are held up against the enlarged ends of. the stripper roller by suitable pressure means acting against the rear end of the bundle, as a weight or a spring and that the said strip per roller holds the sheets a given distance from the needle bar 19 so that the needle will penetrate but a few ofthe outermost sheets at a time.

I claim as my invention: l. The combination" with 'means for holding a group of sheets in a compact bundle bundle from which they are stripped, and

means for swinging said needle about its point; in the direction of the stripping movement of the sheets.

'lhe.combination with means for holdng a group of sheets vertically on edge in a compressed bundle and means'for separately stripping the sheets from one end of the group, of a sheet retaining needle penctrating the sheets at the delivery end of the group and swingable vertically about its penetrating point. r

4. The combination with a. magazine having means for holding therein a compact group of sheets arranged on edge, a stripper roller against which the wrappers at one end of the group are pressed and arranged to separately strip the sheets from one end of the group, of a rocking bar extending across the end of the magazine, a needle carried by the bar which penetrates thefirstfew sheets at the delivery end of the group and means for giving movement to the rocking bar to swing said needle about its point.

5.- The combination with amagazine having means for holding therein a compact group of sheets arranged on edge, a stripper roller against which the wrappers at one end of the group are pressed and arranged to separately strip the sheets from one end of the group, of a rocking bar extending across the end of the magazine, a needle carried by the bar and adapted to penetrate the first few sheets at the delivery end of the group, the bar being provided with an oli'set hearing that is located with its axis in alinement with the pointof said needle and means for giving movement to said rocking bar.

6. The combination with a magazine having means for holding therein a compact group of sheets arranged on edge, a stripper roller against which the wrappers at one end of the group are pressed and arranged to separately stripthe sheets from one end of the group, of a rocking bar extending across the end of the magazine, a needle care ried by the bar and adapted to penetrate the first few sheets at the delivery end of the group, the bar being provided with an offset bearing that is located with its axis in alinement with the point of said needle, means j for giving movement to said rocking bar, a rocking lever, connected at one end with said roclnng bar and a cam carried by the shaft of the stripper roller engaging the. other end of the'roclnng lever for giving movement thereto.

7. Means for retarding the stripping of sheets from a compressed bundle of sheets, comprising a needle arranged to penetrate theontermost sheets at the deliveiy end of the bundle and swingable about its penetrating point, the same being a fixed point in space.

8. Means for retarding the stripping of sheets from a compressed bundle of sheets, comprising a needle arranged to penetrate 

